模拟退火算法求函数 f(x)的最小值点， 且 l <= x <= u

f为待求函数，x0为初值点，l，u分别为搜索区间的上下限，kmax为最大迭代次数

q为退火因子，TolFun为函数容许误差

算法第一步根据输入变量数，将某些量设为缺省值-　Simulated annealing algorithm of a function f (x) the minimum point, and l < = x < = u　f is the unknown function, x0 as the initial point, l, u, respectively, lower and upper limits for the search interval, kmax is the maximum　 q iterations for the annealing factor, TolFun as a function of allowable error　　 algorithm is the first step according to the number of input variables, set default values for certain amount of